package com.Ajava1801D;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ThreadPoolExecutor;

/**
 * @author: LCG
 * 作者: LCG
 * 日期: 2020/10/5  10:57
 * 描述: 集合的理论学习
 */
public class TestJIhe {

    public static void main(String[] args) {

        //LinkedHashMap

        //ConcurrentHashMap

       /* List list=new ArrayList<>();

        Iterator iterator = list.iterator();

       *//* for (Object obj:list) {
            list.remove(obj);
        }*//*

       for(int i=0;i<list.size();i++){
           list.remove(i);

       }*/


       Integer yy=1;


       int uu=yy;


       Integer y1=3000;

       Integer y2=3000;



       // ThreadPoolExecutor threadPoolExecutor=new ThreadPoolExecutor()

    }

}
